package com.cmeduSystem.webadmin.app.service.impl;

import cn.hutool.core.collection.CollUtil;
import com.alibaba.fastjson.JSONObject;
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.cmeduSystem.webadmin.app.service.*;
import com.cmeduSystem.webadmin.app.dao.*;
import com.cmeduSystem.webadmin.app.model.*;
import com.cmeduSystem.common.core.base.dao.BaseDaoMapper;
import com.cmeduSystem.common.core.object.TokenData;
import com.cmeduSystem.common.core.object.MyRelationParam;
import com.cmeduSystem.common.core.util.MyModelUtil;
import com.cmeduSystem.common.flow.base.service.BaseFlowService;
import com.cmeduSystem.common.flow.model.FlowTaskComment;
import com.cmeduSystem.common.flow.util.FlowCustomExtFactory;
import com.cmeduSystem.common.sequence.wrapper.IdGeneratorWrapper;
import com.cmeduSystem.common.redis.util.CommonRedisUtil;
import com.github.pagehelper.Page;
import lombok.extern.slf4j.Slf4j;
import org.flowable.task.api.Task;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import jakarta.annotation.PostConstruct;
import java.util.*;

/**
 * 工单信息数据操作服务类。
 *
 * @author xulei
 * @date 2025-09-04
 */
@Slf4j
@Service("ticketInfoService")
public class TicketInfoServiceImpl extends BaseFlowService<TicketInfo, Long> implements TicketInfoService {

    @Autowired
    private IdGeneratorWrapper idGenerator;
    @Autowired
    private CommonRedisUtil commonRedisUtil;
    @Autowired
    private TicketInfoMapper ticketInfoMapper;
    @Autowired
    private FlowCustomExtFactory flowCustomExtFactory;

    @PostConstruct
    public void registerBusinessDataExtHelper() {
        flowCustomExtFactory.getBusinessDataExtHelper().doRegister("ggFlow", this);
    }

    /**
     * 返回当前Service的主表Mapper对象。
     *
     * @return 主表Mapper对象。
     */
    @Override
    protected BaseDaoMapper<TicketInfo> mapper() {
        return ticketInfoMapper;
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public TicketInfo saveNew(TicketInfo ticketInfo) {
        ticketInfoMapper.insert(this.buildDefaultValue(ticketInfo));
        return ticketInfo;
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public void saveNewBatch(List<TicketInfo> ticketInfoList) {
        if (CollUtil.isNotEmpty(ticketInfoList)) {
            ticketInfoList.forEach(this::buildDefaultValue);
            ticketInfoMapper.insertList(ticketInfoList);
        }
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public void saveNewAndStartProcess(
            String processDefinitionId,
            FlowTaskComment comment,
            JSONObject variables,
            TicketInfo ticketInfo) {
        this.saveNew(ticketInfo);
        super.startAndTakeFirst(processDefinitionId, ticketInfo.getId(), comment, variables);
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public void saveNewAndTakeTask(
            String processInstanceId,
            String taskId,
            FlowTaskComment comment,
            JSONObject variables,
            TicketInfo ticketInfo) {
        this.saveNew(ticketInfo);
        super.takeFirstTask(processInstanceId, taskId, ticketInfo.getId(), comment, variables);
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public boolean update(TicketInfo ticketInfo, TicketInfo originalTicketInfo) {
        super.setAutoCodeFieldWithOriginalValue(ticketInfo, originalTicketInfo);
        ticketInfo.setCreateUserId(originalTicketInfo.getCreateUserId());
        ticketInfo.setUpdateUserId(TokenData.takeFromRequest().getUserId());
        ticketInfo.setCreateTime(originalTicketInfo.getCreateTime());
        ticketInfo.setUpdateTime(new Date());
        // 这里重点提示，在执行主表数据更新之前，如果有哪些字段不支持修改操作，请用原有数据对象字段替换当前数据字段。
        UpdateWrapper<TicketInfo> uw = this.createUpdateQueryForNullValue(ticketInfo, ticketInfo.getId());
        return ticketInfoMapper.update(ticketInfo, uw) == 1;
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public boolean updateAndTakeTask(
            Task task,
            FlowTaskComment comment,
            JSONObject variables,
            TicketInfo ticketInfo,
            TicketInfo originalTicketInfo) {
        // ticketInfo 为空的时候，无需修改主表数据。
        if (ticketInfo != null && !this.update(ticketInfo, originalTicketInfo)) {
            return false;
        }
        super.takeTask(task, originalTicketInfo.getId(), comment, variables);
        return true;
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public boolean remove(Long id) {
        return ticketInfoMapper.deleteById(id) == 1;
    }

    @Override
    public List<TicketInfo> getTicketInfoList(TicketInfo filter, String orderBy) {
        return ticketInfoMapper.getTicketInfoList(filter, orderBy);
    }

    @Override
    public List<TicketInfo> getTicketInfoListWithRelation(TicketInfo filter, String orderBy) {
        List<TicketInfo> resultList = ticketInfoMapper.getTicketInfoList(filter, orderBy);
        // 在缺省生成的代码中，如果查询结果resultList不是Page对象，说明没有分页，那么就很可能是数据导出接口调用了当前方法。
        // 为了避免一次性的大量数据关联，规避因此而造成的系统运行性能冲击，这里手动进行了分批次读取，开发者可按需修改该值。
        int batchSize = resultList instanceof Page ? 0 : 1000;
        this.buildRelationForDataList(resultList, MyRelationParam.normal(), batchSize);
        return resultList;
    }

    private TicketInfo buildDefaultValue(TicketInfo ticketInfo) {
        if (ticketInfo.getId() == null) {
            ticketInfo.setId(idGenerator.nextLongId());
        }
        TokenData tokenData = TokenData.takeFromRequest();
        ticketInfo.setCreateUserId(tokenData.getUserId());
        ticketInfo.setUpdateUserId(tokenData.getUserId());
        ticketInfo.setRequesterId(tokenData.getUserId());
        Date now = new Date();
        ticketInfo.setCreateTime(now);
        ticketInfo.setUpdateTime(now);
        MyModelUtil.setDefaultValue(ticketInfo, "priority", 2);
        MyModelUtil.setDefaultValue(ticketInfo, "status", 1);
        MyModelUtil.setDefaultValue(ticketInfo, "closeReason", "NULL::character varying");
        commonRedisUtil.generateAndSetAutoCodeField(ticketInfo, super.calculateAutoCodeField());
        return ticketInfo;
    }
}
